Gael august paillaed



UNITEI) STATES PATENT 'v OFFICE.

CARL AUGUST PAILLARD, OF GENEVA, SWITZERLAND.

ALLOY.

SPECIFICATION forming part of Letters Patent No.367,160, dated lTuly 26, 1887.

Original application filed March 6, 1886, Serial No. 194,525. Divided and this application filed February 24, 1887. Serial No. 228,665. (No specimens.) Patented in England May 11,1886, No. 6,367; in France May 11, 1886, No. 176,053, and in Germany May 11. 1886, No. 38,445.

To all whom, it may concern:

Be it known that I, CARL AUGUST PAILLARD, a citizen of Switzerland, residing at Geneva, in the canton of Geneva, Switzerland, have in vented certain new and useful Improvements in Alloys; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a metallic alloy composed of the metals hereinafter mentioned, which alloy is useful in the mechanic arts,and particularly in the manufacture of balances, hair springs,and other parts of watches,clocks, and chronometcr mechanisms.

One'object of my invention is to produce an alloy which will be non-magnetic, unoxidizable, and practically non-dilatable.

A further object of my invention is to produce an alloy which is elastic, ductile, and capable of being tempered to any required degree of hardness to adapt it to the several uses for which it is designed.

In an application filed by me on March 6, 1886, Serial No. 194,525, of which this is a division, I have fully set forth the importance and utility of an alloy which possesses the characteristics and properties above mentioned, the difficulties which have been experienced in producing it, and-the means and process by which I am enabled to produce an alloy which will possess said characteristics and properties in a high degree.

It is well known that in the mechanic andother arts metals and other substances and materials of different degrees of texture and refinement are necessary in order to secure results of the highest degreeof perfection.

' The alloy which forms the subject of this application I have found by experiment to be non-magnetic, unoxidizable, hardly dilatable, ductile, and elastic in the highest degree-4n fact, to be capable of withstanding the severest tests without change or impairment.

In the manufacture of watches, chronometers, and other time-pieces where perfect time and the greatest uniformity and regularity of action are required, the balance and springs must be made of such material that they will not and cannot be affected by natural and artificial causes and forces which do not amount to displacement or destruction of the parts. Such material or alloy I have discovered, and hereby make the subject of this application.

This alloy is composed of the followingnamed metals,combined in about the following proportions, viz: palladium, sixty-five to seventy-five parts; copper, fifteen to twenty-five parts; nickel, one to five parts; gold, one to two and one-half parts; platinum, one-half to two parts; silver, three to ten parts; steel, one to five parts.

A melting process by which this alloy may 'be-forined is fully described in the application above referred to, of which this application is a division, and hence it is not here again repeated.

Having thus described my invention,'what I claim as new, and desire to secure by Letters Patent, is- V r 1. An alloy composed of palladium, copper,

nickel, gold, platinum, silver, and steel, in

about the proportions stated.

2. An alloy composed of palladium, sixtyfive to seventy-five parts; copper, fifteen to twenty-five parts; nickel, one to five parts; gold, one to two and one-half parts; platinum, one-half part to two parts; silver, three to ten parts; steel, one to live parts, substantially as described.

In testimony whereof I affix my signature in presence oftwo witnesses.

' CARL AUGUST PAILLARD.

Witnesses:

ARoH. HANNAFORD, Ls. T. BORNAUD, Fils. 

